This is the prayer of one who is still in the world, but no longer of the world. When despair and anxiety bite they feel like a little death. When your tiredness, your sin or your despondency collapse over you, you need to pray with the prayer of the dead, the prayer of our nothingness silently hoping against hope, silently crying out for Christ, silently waiting for the Resurrected One to be risen from our own tomb: our body and our soul.
This is not abandonment, but the exact opposite: this is the prayer which is proper to our fallen nature, the desperate cry for Life of one who is made of nothing, but does not belong to nothing. This is the prayer of one who is still in the world, but no longer of the world - instead, they now belong to Christ